Principal Investigator

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Prof. Jianwei (John) Miao

Email: miao@physics.ucla.edu
Office: 3-108 Knudsen
Phone: (310) 206-2645

Dr. Miao is a professor in the Department of Physics and Astronomy and California NanoSystems Institute (CNSI) at UCLA. He is also the Deputy Director of STROBE, an NSF Science and Technology Center on Real-Time Functional Imaging, which aims to tackle major scientific challenges by improving imaging technologies. Dr. Miao's research interests lie in the interplay of physics, materials science, nanoscience, and biology. He has developed groundbreaking physical methods for high-resolution 3D imaging of nanoscale materials and biological specimens. He pioneered coherent diffraction imaging (CDI), a lensless imaging (or computational microscopy) technique that is under rapid development worldwide. Recently, he pioneered atomic electron tomography (AET) for 3D structure determination of crystal defects and disordered systems at the single-atom level. Using advanced electron microscopies, X-ray free electron lasers, high harmonic generation, and synchrotron radiation, his group will continue to push the frontiers of high-resolution 3D X-ray and electron imaging and to pursue their applications in the physical and biological sciences. MORE

Visiting Scientists

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Đông Du Mai

Email: du.mai@eli-beams.eu

Đông Du joined the Coherent Imaging Group in June 2018 as a visiting scholar from ELI Beamlines, Prague, Czech Republic. He received his Ph.D. (Dr. rer. nat.) at the Georg-August-University in Göttingen, Germany, in the field of semiconductor physics in 2009 and continued as a postdoctoral fellow at the Courant Research Centre "Nano-Spectroscopy and X-ray Imaging", Göttingen. He joined ELI Beamlines, Prague, in 2016 as a senior scientist for laser-driven secondary X-ray sources. His research focuses on the development of high-brilliance pulsed VUV/X-ray sources for time-resolved spectroscopy and imaging. At UCLA, he will take the opportunity to bridge ELI's short-pulse X-ray Lab with UCLA's CDI unique expertise for a long-term collaboration.

Postdoctoral Scholars

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Jihan Zhou

Email: jihan.zhou@physics.ucla.edu

Jihan Zhou received his B. S. in Chemistry from Peking University in 2009. After that, he studied polymer physics & peptide-mediated siRNA delivery system under the supervision by Prof. Dehai Liang and received his Ph. D. from Peking University in 2014. From Aug 2011 to Apr 2012, he worked in Prof. Sonia Contera’s Biophysics Group at Oxford University as a Visiting Scholar studying liposome mechanics. He joined in the Miao group at UCLA as a Postdoctoral Fellowship in September 2014. His research interest lies in atomic electron tomography (AET) of nanomaterials such as nanoalloy catalysts, metal-semiconductor interfaces and quasi/amorphous materials.

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Yongsoo Yang

Email: ysyang@physics.ucla.edu
Office: 2-240A Knudsen
Phone: (310) 206-4101
Personal Webpage

Yongsoo joined the Coherent Imaging Group in Oct. 2014. He received B.S. in Physics and Mathematical science from Seoul National University in 2009, and Ph.D. in experimental condensed matter physics from the University of Michigan in 2014. He has been mainly working on structural determination beyond conventional crystallography, to resolve 3D atomic structure of materials with surface/interface or defects where perfect crystal symmetry is broken.

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Xuezeng Tian

Email: tianxuezeng@physics.ucla.edu
Office: 2-240A Knudsen

Dr. Xuezeng Tian joined the Miao Group in January 2017. He was born in Baoding, China and graduated from Shandong University in 2009 with B.S. in Physics. After that he obtained his Ph. D. from the Institute of Physics, Chinese Academy of Sciences in 2014. During his Ph.D., he worked on in situ electrical/optical TEM with Prof. Xuedong Bai, targetting the mechanism of various resistive memories. After that, he became a research fellow in a joint program between the National University of Singapore and UC Berkeley, working towards imaging of dynamics in nanomaterials and biological samples alive with in situ liquid cell TEM. During his past research, he has become proficient in electron microscopy (theory, experiments and image processing), thin films & nanomaterials (preparation and characterization), micro fabrication techniques, and in situ technologies (electrical, thermal, optical and liquid cells). His main research interest lies in atomic electron tomography (AET) of catalytic nanomaterials, to correlate their stability and catalytic properties with their 3D atomic arrangements. His long-term interest is to combine his in situ expertise with the AET method.

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Dennis Kim

Email: dskim@physics.ucla.edu
Office: 3-306 Knudsen
Phone: (310) 206-6977

Dennis received his B.S. in Chemistry from the University of Massachusetts Amherst in 2011. He received his Ph.D. in Materials Science from the California Institute of Technology in 2017 investigating materials thermodynamics using inelastic neutron scattering and ab initio computational methods. He joined the Coherent Imaging Group as the STROBE postdoctoral fellow in the summer of 2017 and plans to utilize the group's recent advances in imaging techniques to study various materials and their properties.

Graduate Students

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Arjun Rana

Email: arana@physics.ucla.edu

Arjun received his B.S. in Physics from Rutgers University in 2011. He joined the Miao group in the spring of 2014 and received his M.S. in Physics from UCLA in 2015. Arjun’s main interests lie in algorithm development and hardware design. Currently, he is working on the development of new CDI methods. His hobbies include snowboarding and riding his motorcycle.

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Yuan Hung (Mike) Lo

Email: lo.yuanhung@gmail.com

Mike joined Miao group in 2015 as a graduate student. As a bioengineer in training, he is interested in the intersection of high resolution imaging science and their applications in medicine and bioengineering. His research focus in coherent diffractive imaging has led him to develop novel ways to capture and analyze high resolution dynamic information from organic and inorganic specimens. With this new technique, he hopes to push the spatiotemporal resolution limits of diffractive imaging to reveal never-before-seen phenomena. Outside of research, Mike is interested in algorithm development, machine learning, design and arts, as well as the game of basketball.

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Yao Yang

Email: yangyao0401@gmail.com

Yao joined the Coherent Imaging Group in March 2017 as a graduate student. He received B.S. degree in Materials Science and Engingeering from Tsinghua University in 2015. He is interested in the 3D reconstruction of materials by combining advanced algorithm and TEM technique. As a student major in materials science, he believe that with the development of AET technique, he can get the inner sight of materials under different behaviors, such as mechanism of Martensite transformation and growth of nano-materials. Besides research, Yao also likes playing basketball and tennis, as well as video games.

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Jianhua Zhang

Email: zhangjianhua@physics.ucla.edu

Jianhua joined Prof. Miao's CDI group in October 2017 as a visiting graduate student. He graduated from Shandong University in 2013 with a B.S. degree in Electronic Science and Technology and is pursuing a Ph. D. degree in the Department of Materials Science at Shandong University. Since joining UCLA, he has been conducting research in ptychographic coherent diffractive imaging (CDI) under the supervision of Prof. Miao. His hobbies include soccer and drawing.

Undergraduate Students

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Stavrini Tsangari

Email: stsangari@ithaca.edu
Phone: (607) 697-3756

Stavrini Tsangari joined Miao’s Coherent Imaging Group in June 2018 as a visiting STROBE Undergraduate Research Scholar (SURS) Program. She is currently an undergraduate student pursing a B.A. in Physics from Ithaca College and a B.S. in Engineering Physics from Cornell University. Her research background is mostly in optical physics and spectroscopy. Currently, she is focusing on the reconstruction of different nanoparticles, with the use of the CDI method ptychography. Stavrini is planning on doing more research in Imaging Science in the future. Her hobbies include hiking and dancing.

Alumni

Changyong Song

Associate Professor
Department of Physics, Pohang University of Science and Technology
South Korea

Huaidong Jiang

Professor, School of Physical Science and Technology
ShanghaiTech University, China

Adrian Mancuso

Group Leader and Leading Scientist
Europen XFEL, Germany

Russell Fung

Senior Scientist
Department of Physics
University of Wisconsin-Milwaukee

Benjamin P. Fahimian

Clinical Associate Professor
Radiation Oncology, Radiation Physics
Stanford University

Edwin Lee

Researcher
Semes, South Korea

Jose A. Rodriguez

Assistant Professor
Department of Chemistry & Biochemistry
UCLA

Yunzhe (Janice) Zhao

Staff Scientist
Himax Imaging Inc.

Chien-Chun Chen

Assistant Professor
Department of Physics
National Sun Yat-sen University, Taiwan

Chun Zhu

Staff, AT&T Labs

Mary C. Scott

Assistant Professor
Department of Materials Science & Engineering
UC Berkeley and LBNL

Sara Salha

Data Scientist, Amazon.com Inc.

Lu Rong

Assistant Researcher
College of Applied Sciences
Beijing University of Technology, China

Matthias Bartels

Scientist, Philips Research
Germany

Zhifeng Huang

Staff Scientist
Carl ZEISS X-ray Microscopy Inc.

Maryam Bostani

Assistant Clinical Professor
David Geffen School of Medicine at UCLA

Carlos Sato

Researcher
Brazilian Synchrotron Light Source

Marcus Gallagher-Jones

Postdoctoral Scholar
Department of Chemistry and Biochemistry, UCLA

Rui Xu

Research Scientist
Department of Electrical Engineering
University of Southern California

AJ Pryor

Lead Data Scientist
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